read-copy update (rcu) · Supported

Maintainers

• M "Paul E. McKenney" <paulmck@kernel.org>
• M Frederic Weisbecker <frederic@kernel.org>
• M Neeraj Upadhyay <neeraj.upadhyay@kernel.org>
• M Joel Fernandes <joelagnelf@nvidia.com>
• M Josh Triplett <josh@joshtriplett.org>
• M Boqun Feng <boqun@kernel.org>
• M Uladzislau Rezki <urezki@gmail.com>
• R Steven Rostedt <rostedt@goodmis.org>
• R Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
• R Lai Jiangshan <jiangshanlai@gmail.com>
• R Zqiang <qiang.zhang@linux.dev>

Paths

• F Documentation/RCU/
• F include/linux/rcu*
• F kernel/rcu/
• F rust/kernel/sync/rcu.rs
• X Documentation/RCU/torture.rst
• X include/linux/srcu*.h
• X kernel/rcu/srcu*.c

Last 30 days

Recent patches

Most-recent 29 patches in this subsystem on linuxppc-dev, ordered by date desc.

• COLD23d REVIEWED: 9 (9M) [PATCH v4 1/2] tracing: Move non-trace_printk prototypes into trace_controls.h
  2026-06-25 · Steven Rostedt <rostedt@kernel.org>
• COLD45d [PATCH 09/11] treewide: Convert custom kernel_param_ops .get callbacks to seq_buf via cocci
  2026-05-21 · Kees Cook <kees@kernel.org>
• COLD45d [PATCH 04/11] treewide: Convert struct kernel_param_ops initializers to DEFINE_KERNEL_PARAM_OPS
  2026-05-21 · Kees Cook <kees@kernel.org>
• COLD53d REVIEWED: 2 (0M) [PATCH 03/15] sched/cputime: Remove superfluous and error prone kcpustat_field() parameter
  2026-05-08 · Frederic Weisbecker <frederic@kernel.org>
• STALE86d Re: [mainline][BUG] Observed Workqueue lockups on offline CPUs.
  2026-04-27 · Samir M <hidden>
• STALE87d REVIEWED: 2 (0M) [PATCH 02/14] sched/cputime: Remove superfluous and error prone kcpustat_field() parameter
  2026-03-31 · Frederic Weisbecker <frederic@kernel.org>
• STALE123d [PATCH 02/15] sched/cputime: Remove superfluous and error prone kcpustat_field() parameter
  2026-02-06 · Frederic Weisbecker <frederic@kernel.org>
• STALE150d [PATCH 02/15] sched/cputime: Remove superfluous and error prone kcpustat_field() parameter
  2026-01-16 · Frederic Weisbecker <frederic@kernel.org>
• STALE1220d Re: [next-20230322] Kernel WARN at kernel/workqueue.c:3182 (rcutorture)
  2023-03-23 · "Paul E. McKenney" <paulmck@kernel.org>
• DORMANTno replies [PATCH linux-next][RFC] powerpc: protect cpu offlining by RCU offline lock
  2022-09-14 · Zhouyi Zhou <hidden>
• STALE1410d [PATCH linux-next][RFC] powerpc: protect cpu offlining by RCU offline lock
  2022-09-14 · Zhouyi Zhou <hidden>
• STALE1289d Re: [PATCH 04/36] cpuidle,intel_idle: Fix CPUIDLE_FLAG_IRQ_ENABLE
  2022-07-28 · "Paul E. McKenney" <paulmck@kernel.org>
• STALE1523d [PATCH 20/30] panic: Add the panic informational notifier list
  2022-04-27 · "Guilherme G. Piccoli" <gpiccoli@igalia.com>
• STALE1677d [PATCH 05/17] all: replace cpumask_weight with cpumask_empty where appropriate
  2021-12-18 · Yury Norov <yury.norov@gmail.com>
• STALE1683d [PATCH 5/9] lib/cpumask: add cpumask_weight_{eq,gt,le}
  2021-11-28 · Yury Norov <yury.norov@gmail.com>
• STALE1901d REVIEWED: 34 (29M) [PATCH v3 1/1] kernel.h: Split out panic and oops helpers
  2021-05-11 · Andy Shevchenko <andriy.shevchenko@linux.intel.com>
• STALE1933d REVIEWED: 15 (10M) [PATCH v2 1/1] kernel.h: Split out panic and oops helpers
  2021-04-09 · Andy Shevchenko <andriy.shevchenko@linux.intel.com>
• STALE1934d [PATCH v1 1/1] kernel.h: Split out panic and oops helpers
  2021-04-06 · Andy Shevchenko <andriy.shevchenko@linux.intel.com>
• DORMANTno replies Re: powerpc 5.10-rcN boot failures with RCU_SCALE_TEST=m
  2020-12-04 · Uladzislau Rezki <urezki@gmail.com>
• STALE2059d Re: powerpc 5.10-rcN boot failures with RCU_SCALE_TEST=m
  2020-12-02 · Michael Ellerman <mpe@ellerman.id.au>
• STALE2205d Re: [PATCH v4 7/8] lockdep: Change hardirq{s_enabled,_context} to per-cpu variables
  2020-06-24 · Peter Zijlstra <peterz@infradead.org>
• STALE2570d Re: [PATCH] treewide: Rename rcu_dereference_raw_notrace to _check
  2019-07-12 · Paul E. McKenney <hidden>
• STALE2570d [PATCH] treewide: Rename rcu_dereference_raw_notrace to _check
  2019-07-11 · Joel Fernandes (Google) <hidden>
• STALE2615d [PATCH RFC 5/5] rcu: Remove rcu_dereference_raw_notrace since no users
  2019-05-24 · Joel Fernandes (Google) <hidden>
• STALE2876d [PATCH] [RFC v2] Drop all 00-INDEX files from Documentation/
  2018-09-03 · Henrik Austad <hidden>
• STALE3032d [PATCH 5/5] smp: Lazy synchronization for EQS CPUs in kick_all_cpus_sync()
  2018-04-05 · Yury Norov <hidden>
• STALE3032d [PATCH 4/5] rcu: arm64: add rcu_dynticks_eqs_exit_sync()
  2018-04-05 · Yury Norov <hidden>
• STALE3034d Re: [PATCH 1/2] rcu: declare rcu_eqs_special_set() in public header
  2018-03-25 · Paul E. McKenney <hidden>
• DORMANTno replies REVIEWED: 1 (0M) Re: [PATCH 2/2] powerpc: Add ppc64 hard lockup detector support
  2014-08-11 · Paul E. McKenney <hidden>

Quiet for 30+ days

Patches with no review trailers and no replies. Either the author is heads-down elsewhere or these slipped through. Oldest first.

• STALE150d [PATCH 02/15] sched/cputime: Remove superfluous and error prone kcpustat_field() parameter
  2026-01-16 · Frederic Weisbecker <frederic@kernel.org>